3″1/2 IF (NC-38) Set (Pin & Box ) Plastic Protector to Protect Drill Pipe – Alfarouk Oil Service
Heavy Weight Drill Pipe 3 1/2inch 26.10 Lb ft Connection NC-38
Q4 A 25.5 lb/ft Grade Z Drill pipe have 9.5 inches in | Chegg.com
Common Drill Pipe Connection
3″1/2 IF (NC-38) Set (Pin & Box ) Plastic Protector to Protect Drill Pipe – Alfarouk Oil Service
4-3/4” OD Flexiwate Non-Magnetic Drill Collar NC38 Connection - Saltire Energy
API 5DP G105 2 38 3 12 4 4 12 5 5 12 drill pipe drill rod - Goldenman Petroleum
4 - 1/2'' E75 S135 Water Well DTH Drilling Tools Drill Rod With NC31 / NC35 /
Nc38 Friction Welding Water Well Drill Pipe Drill Rod for Water Well Drilling Oil Drilling - China Water Well Drill Rod, Drill Pipe | Made-in-China.com
API 5DP X95 Drilled Pipe with NC38 Connection, 3-1/2 Inch - Landee
Heavy Weight Drill Pipe 3 1/2inch 26.10 Lb ft Connection NC-38
wholesale manufacturers api various drill pipes| Alibaba.com